[Bug 1731334] Re: update-notifier-common upgrade :debconf.py not found

[dino99]

Confirm the /partial/ permission denied; checking its properties, it
looks like it has no owner set. But ls -al list _apt as his owner, which
seems not recognised.

 /var/lib/update-notifier/package-data-downloads > ls -al
total 12K
drwxr-xr-x 3 root root 4,0K oct.  23 12:18 ./
drwxr-xr-x 4 root root 4,0K nov.  12 07:03 ../
drwx------ 2 _apt root 4,0K oct.  23 12:18 partial/
-rw-r--r-- 1 root root    0 oct.  23 12:18 ttf-mscorefonts-installer

from nautilus, that /partial/ subdir icon has an 'x' telling it is
locked. Should its owner be changed as _apt seems to be not a valid
owner ? Or is '_' in front of 'apt' the real issue ?

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https://bugs.launchpad.net/bugs/1731334

Title:
  update-notifier-common upgrade :debconf.py not found

Status in update-notifier package in Ubuntu:
  Confirmed

Bug description:
  Today I did a fresh instalation of new branch development ubuntu
  beaver, intended to help with some tests... So, after the
  installation, I switched on cannonical partners and proposed
  repositoryes and I gave an apt upgrade and dist-upgrade and restarted
  the computer...  After this I tried to install flashplugin-installer
  and I got the follow messages from apt process:

  Configuring update-notifier-common (3.186) ...
  Traceback (most recent call last):
    File "/usr/lib/update-notifier/package-data-downloader", line 26, in <module>
      import debconf
  ModuleNotFoundError: No module named 'debconf'
  dpkg: erro ao processar o pacote update-notifier-common (--configure):
   installed update-notifier-common package post-installation script subprocess returned error exit status 1

  I had to remove the update-notifier-common and with it, update-
  notifier, ubuntu-desktop, the unconfigured flashplugin-installer and
  some two oher dependencies that I dont remember.

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